- tour-map shortcode: Leaflet map of the tour locations with routes from the
Congress, from the map/tours sections of data/schedule/<event>.yaml; Leaflet
and the OSMIC, Maki and Temaki icon sets vendored; 39C3 uMap data converted.
- calendar shortcode: per tour date, a pill with an .ics download (iCalendar)
and a Google Calendar link; Font Awesome Free vendored, fa-icon partial.
- README sections for the calendar and tour map shortcodes and the map data.
- Bump themes/zen from v5.7.0 to v7.1.0 (vanilla CSS, no libsass).
- Move layouts to Hugo's new template structure (_default -> root,
index.html -> home.html, shortcodes -> _shortcodes).
- Replace deprecated language API in templates (Locale, Direction, Name)
and sync base templates and mobile menu with theme v7.
- Config: languageName/languageCode -> label/locale; move copyright to
the top-level key the v7 footer reads.
- Port _custom.scss to assets/css/_custom.css and map page/body
backgrounds to v7's --color-body-bg/--color-page-bg.
- CI: build with hugomods/hugo:0.165.0.
